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http://dx.doi.org/10.12925/jkocs.2018.35.4.1307

Study on Characteristics of Change of Urea and Biuret Content by Temperature Variation in Urea Solution  

Doe, Jin-woo (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Park, Tae-sung (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Lee, Yu-rim (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Yim, Eui-soon (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Lee, Joung-min (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Kang, Hyung-kyu (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
Publication Information
Journal of the Korean Applied Science and Technology / v.35, no.4, 2018 , pp. 1307-1319 More about this Journal
Abstract
As interests in the air pollution increases, many kinds of researches are underway on the reduction of air pollutants. The removal of nitrogen oxides from the emission gas of diesel vehicles using urea solution has shown a great effect. The quality of urea solution is strictly defined by domestic law, but the increase of impurities in urea solution reduces the effect of reducing nitrogen oxides. Therefore, in this study, the change of physical properties of urea solution was analyzed after heating the urea solution for a certain temperature and time. Also, the changes of physical properties of urea solution were analyzed according to kinds of storage container and temperature for storing the urea solution. After heating the urea solution for a certain period of time, the biuret content in urea solution increased and the content of urea decreased. As the urea content decreased, both density and refractive index decreased. In the storage stability test carried out at a constant temperature with iron and PET containers, no change in physical properties was observed.
Keywords
Urea solution; biuret; Urea content; Diesel vehicles; Storage Stability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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